Dear community never mind! although I was using 1.0.0 spark everywhere I did not update my spark client
changed pom (from 0.9.0) to 1.0.0 <spark-core.version>1.0.0-cdh5.1.0</spark-core.version> <spark-streaming.version>1.0.0-cdh5.1.0</spark-streaming.version> fixed the problem -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/akka-tcp-spark-localhost-7077-user-MapOutputTracker-akka-actor-ActorNotFound-tp10794p10813.html Sent from the Apache Spark User List mailing list archive at Nabble.com.